/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { paramMock } from '../utils';

export function mockUiAppearance() {
    const DarkMode = {
        ALWAYS_DARK: 0,
        ALWAYS_LIGHT: 1
    }
    const uiAppearance = {
        DarkMode,
        setDarkMode: function (...args) {
            console.warn("uiAppearance.setDarkMode interface mocked in the Previewer." +
              " How this interface works on the Previewer may be different from that on a real device.")
            const len = args.length;
            if (len > 0 && typeof args[len - 1] === 'function') {
                args[len - 1].call(this, paramMock.businessErrorMock);
            } else {
                return new Promise((resolve) => {
                    resolve();
                });
            }
        },
        getDarkMode: function () {
            console.warn("uiAppearance.getDarkMode interface mocked in the Previewer." +
              " How this interface works on the Previewer may be different from that on a real device.")
            return DarkMode;
        }
    }
    return uiAppearance;
}
